Fan Vibration Testing Fixture with Adjustable Clamp
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fan vibration testing methods face challenges in achieving consistent results due to dimensional variations in fans of different sizes and shapes, leading to variations in pressure and rotation, which require multiple clamp fixtures and prolong the testing process.
Innovation Solution
A fan vibration testing apparatus with a beam and fan mounting head designed to differentiate its natural frequency from the fan, featuring a U-shaped cut-out with angled ledges for secure engagement and a rotatable clamp with teeth to prevent lateral movement, allowing for uniform clamping and vibration measurement across various fan sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple clamp fixtures are used to accommodate fans of different sizes and shapes, then the testing apparatus can handle various fan dimensions, but the device complexity increases and the testing process is prolonged
Solution Approach 1:
The patent applies universality by designing a single clamp fixture that can accommodate fans of various sizes and shapes. The clamp includes an adjustable arm with a gripping mechanism that can be positioned at different radial distances from the center and adjusted to engage with fan frames of different diameters. This universal clamp eliminates the need for multiple specialized fixtures while maintaining the ability to test diverse fan configurations.
Solution Approach 2:
The patent applies dynamics by incorporating an adjustable and reconfigurable clamp mechanism. The clamp arm can be dynamically repositioned along the radial direction and adjusted to match different fan geometries. This dynamic adjustability allows the same fixture to adapt to varying fan dimensions without requiring physical replacement of fixtures, thereby reducing device complexity while maintaining versatility.
2Measurement precision
If dimensional variations in fans are not accounted for, then the testing process is simplified, but measurement precision deteriorates due to variations in pressure and rotation
Solution Approach 1:
The patent applies local quality by providing localized adjustment capabilities within the clamp fixture. The clamp arm can be independently positioned at specific radial distances from the center, and the gripping mechanism can be adjusted to accommodate local variations in fan frame dimensions. This localized adjustability ensures consistent clamping pressure and vibration measurement across different fan sizes without requiring complex overall system changes.
3Device complexity
If a single clamp fixture is used for all fan sizes, then device complexity is reduced, but manufacturing precision deteriorates due to inability to accommodate dimensional variations
Solution Approach 1:
The patent applies dynamics to resolve this contradiction by designing a clamp mechanism with dynamic adjustment capabilities. The clamp arm can be repositioned radially and the gripping mechanism can be adjusted to maintain optimal clamping pressure for different fan dimensions. This dynamic adaptability allows a single fixture to achieve manufacturing precision across various fan sizes without requiring multiple specialized fixtures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and repeatable vibration testing of fans of different diameters and sizes with a single fixture, eliminating user-induced variance and providing a wide range of sensitivity to vibrations without interference from the testing apparatus.
Implementation Method 1
an accelerometer to measure vibrations of the fan
Data Source
AI summary
According to an example, a fan vibration testing apparatus includes a beam. The fan vibration testing apparatus further includes a fan mounting head disposed at a first location on the beam and including a cut-out, and a rod including first and second opposite rod ends. The rod may be attached at the first rod end to the fan mounting head, and the second rod end may be exposed to retain a fan within the cut-out.